Effects of glucose concentration and pH\|control upon production of exopolysaccharides of Grifola frondosa was studied.The results showed that glucose at concentration of 5% was favorable to exopolysaccharides production,and the pellets benefited from the controlled start pH as well as the controlled final pH of 3 5～4 0 to produce exopolysaccharides.Attempt on the exopolysaccharides production with recycled pellets in the saccharoid solution was also made in this work.
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